Fig. 4From: A case report of primary cardiac myxofibrosarcoma presenting with severe congestive heart failureHistological images. a, An examination with hematoxylin and eosin technique showed spindle-shaped cells with myxoid background. b, Most of the tumor cells showed spindle-shaped, but some cells were round in shape. c, Focally a hypercellular lesion was found. d, The tumor cells were weakly immunnoreactive for calponinBack to article page